Orders/Alibaba 122x32 LCD Displays

Organised by Sci.

The LCDs are here: http://eastrising.en.alibaba.com/product/520361167-212974175/LCD_Graphic_Display_122x32.html

I've been quoted $7.50USD (so about £4.62 each) plus about $35 (~£22) postage to the UK for the 4 I'm after. Price might go down a bit if people are interested. I don't know the price-break quantities though.

Revised postage will be $60, plus $9 bank fees. Across 22 items that's a $3.14 (£1.94) fee per unit. Totals per interested party at the bottom.

Lead time is currently 1-2weeks while waiting for new lot of red backlights. Delivery time should be about 5 days from then. Will be notified.

Interested

Red-on-black (ERM12232DNR-1):

• Sci x4
• DMI x2
• Mark Steward x4
• tgreer x1
• Jon Fautley (Filbert) x 2

Total: 13

Other items:

• DMI, x3 dark-blue-on-white (ERM12232GS-1) $6.40ea.
• Kimball Johnson, x2 dark-blue-on-white (ERM12232GS-1), x1 ERC24064SBS-1 (white on blue) Drrk 22:18, 2 May 2012 (UTC)
• tgreer x1 (ERM12232GS-1) $6.40ea.
• asc x2 dark-blue-on-white (ERM12232GS-1) $6.40ea.

Amounts payable

• Sci (4x ERM12232DNR-1); $42.56 (£26.30) PAID - May 4th, 2012
• DMI (2x ERM12232DNR-1, 3x ERM12232GS-1); $21.28 + $28.62 = $49.90 (£30.83) PAID - May 4th, 2012
• Mark Steward (4x ERM12232DNR-1); $42.56 (£26.30) PAID - May 9th, 2012
• tgreer (1x ERM12232DNR-1, 1x ERM12232GS-1); $10.64 + $9.54 = $20.18 (£12.46) PAID - May 5th, 2012
• Jon Fautley (Filbert) (2x ERM12232DNR-1); $21.28 (£13.14) PAID - May 4th, 2012
• Kimball Johnson (2x ERM12232GS-1, 1x ERC24064SBS-1) $19.08 + $17.14 = $36.22 (£22.37) PAID - May 5th, 2012
• asc (2x ERM12232GS-1) $19.08 (£11.78) PAID - May 8th, 2012

Total: $231.78 (within $0.08 of invoice total) (£143.14)

Order has been placed.

Order has arrived at Sci's home address. Will attempt to deliver them to individuals member-boxes at the weekend unless otherwise instructed.

Usage

The controller appears to be a SED1520 module. An AVR library is here: http://en.radzio.dxp.pl/sed1520/

Pinout

Pin	Name	Description
1	VSS	Power (+5V)
2	VDD	Ground (+0V)
3	V5	Contrast adjustment. Connect a rheostat with VSS
4	A0	Command (L) or data (H) register selection input
5	CS1	Left side (61 columns) select input, low active
6	CS2	Right side (61 columns) select input, low active
7	CL	External clock signal
8	E-RD	Enable signal or read enable clock
9	R/W_W/R	Read/write or write enable clock
10	D0	8-bit bi-directional data bus
11	D1
12	D2
13	D3
14	D4
15	D5
16	D6
17	D7
18	RES	Hardware reset and interface type selection: High = 68-family MPU, low = 80-family MPU
19	NC	No connection
20	NC	No connection

Backlight

The backlight is provided by an LED on each side of the display. Looking from the front of the LCD module, the top-right and bottom-left pins are +3.3V, and the top-left and bottom-right pins are connected to ground. The datasheet is inconsistent, but suggests either 15mA or 40mA of current per LED.